ELECTRONIC-SPECTRUM OF THE HIGH-TEMPERATURE SUPERCONDUCTING STATE

被引：111

作者：

HWU, Y

LOZZI, L

MARSI, M

LAROSA, S

WINOKUR, M

DAVIS, P

ONELLION, M

BERGER, H

GOZZO, F

LEVY, F

MARGARITONDO, G

机构：

[1] UNIV WISCONSIN,CTR SYNCHROTRON RADIAT,MADISON,WI 53706

[2] ECOLE POLYTECH FED LAUSANNE,PH ECUBLENS,INST PHYS APPL,CH-1015 LAUSANNE,SWITZERLAND

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.67.2573

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Improved experimental conditions enabled us to increase the signal-to-noise ratio of the photoemission spectra for the superconducting state of Bi2Ca2SrCu2O8, taken with high angular and energy resolution. This also enabled us to reveal a pronounced minimum that separates the two basic features of the spectrum, the narrow quasiparticle excitation peak and the still controversial broad band at lower kinetic energies. The minimum is approximately 3-DELTA below the Fermi level.

引用

页码：2573 / 2576

页数：4